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If the angle of inclination with the horizontal reaches 40°, the box begins to slip and it slides 2.4 m down the plank in 4.5 s at constant acceleration. Determine the coefficient of static fric
He then turns the hubcap over, keeping it the similar distance from his face. He now observes an image of his face 10.4 cm in the back of hubcap. (i) Determine how far is his face from the hubcap?
Determine what magnetic field strength could you get within a 2.9 diameter solenoid wound with the wire as closely spaced as probable?
A certain crystal provides a deflection angle of 30 degrees for the first-order maximum of monochromatic X-rays having a frequency of around 4.4 × 1017 Hz.
The atomic mass of an a particle is around 4.002 603 u . With the energy released in 3.66 days determine amount in kilograms the ice could be melted at 0*C?
The take-up reel of a cassette tape consists of an average radius of 1.4 cm. Determine the length of tape (in meters) which passes around the reel in 56 s if the reel rotates at an average angular s
When we take the diameter of a proton to be 1.0* 10^ -15 m, then what would be the mass of the mini black hole?
A transformer is to be employed to give power for a computer disk drive which requires 5.4 V (rms) rather than the 120 V (rms) from the wall outlet. The number of turns in the primary is around 395
A vertical spring having a spring constant of 1.86 N/m consists of a 0.32-kg mass joined to it, and the mass moves in a medium having a damping constant of 0.025 kg/s. The mass is released from rest
A bungee jumper of 89 kg is enjoying an afternoon of jumps. The first oscillation of jumper consists of amplitude of 14 m and a period of 4 s. Treating the bungee cord as a spring with no damping,
The piston then moves up and down, driven through a force given by (27.0 N) cos [(17.1 Hz)t]. (i) Find out the maximum displacement from its equilibrium position which the mass can reach?
A point charge having 5.1 μC is positioned at the center of a sphere having a radius of 7 cm. The Coulomb constant is around 8.98755 × 109 Nm2/C2, and the acceleration of gravity is 9.8 m/s
Determine how fast must the bat fly, Vb, to hear a beat frequency of around 205 kHz?
An object is initially at xi = 0 cm position of a meter stick positioned on the x-axis. A converging lens having focal length of 26.0 cm is fixed at the position 32.0 cm. Then we slowly slide the o
i) An electric field having magnitude 4330 N/C is exerted all along the x axis. Compute the electric flux via a rectangular plane 0.377 m broad and 0.74 m long when the plane is parallel to the yz
Determine the power of thermal radiation emitted through a sphere with a surface area fo 2.5m^3, an emissivity of 0.7 and a temperature of 250 deg-C?
When the rocket consists of an initial mass of around 6500 kg and ejects gas at a relative velocity of magnitude 1900 m/s, determine how much gas should it eject in the first second to encompass an
A slit of width 0.20 mm is illuminated having monochromatic light of wavelength 550 nm, and a diffraction pattern is made on a screen 1.2 m from the slit. Determine the widths of the second and thir
When the ball strikes you and bounces off your chest, so that afterwards it is moving horizontally at 8.00 in the opposite direction, find out your speed after the collision?
A particle having mass m0 is given a kinetic energy equivalent to one-third its rest-mass energy. Determine how fast must the particle be traveling?
If an aluminum bar is temporarily joined among a hot reservoir at 720 K and a cold reservoir at 368 K, 2.20 kJ of energy is transferred through heat from the hot reservoir to the cold reservoir. (i
Aluminum wiring rated at 30.0 A maximum current is to be installed in the home. For safety reasons, it must generate no more heat than 15 watts per meter of length. (Aluminum resistivity is around 2
When a line drive is strike essentially horizontally at this speed and is caught through a 65.0 kg player who has leapt directly upward into the air, determine what horizontal speed (in cm/s) does h
Compute the wavelengths in air at 20°C for sounds in the maximum range of human hearing, 20 Hz to 20,000 Hz.
In principle, anytime someone jumps up, the earth moves in the opposite direction. To observe why we are unaware of this motion, compute the recoil speed of the earth if a 73.0 kg person jumps upwar